Product details

  • Small USB DAC headphone amplifier with optimized HiFi audio architecture ensures High-Resolution sound quality. The portable USB DAC DS1 is compatible with various systems like Android/iOS/Windows/Mac, compatible with the latest devices: phones/computers/tablets/laptops/audio players, etc. Wonderfully versatile when commuting in the home, office, or gaming.

  • DS1 adopts ESS Technology ES9038Q2M DAC Chips supporting DSD 512 and 32Bit/768kHz PCM, features best-in-class specifications, and high-power outputs capable of supporting the most demanding of headphones with impedance above 200Ω.

  • Low Noise Floor Clean Sound for True High-Fidelity. DS1 features abundant power with a high signal-to-noise ratio, low distortion, and almost 0 noise.

  • 3.5MM+4.4MM Dual Headphone Outputs are both Powerful enough to easily drive most headphones. The traditional 3.5mm single-ended headphone output is widely compatible with most headphones, and a 4.4mm balanced headphone output for a more detailed audio experience. Specifications: THD+N<0.0006%, output power up to 220mw, SNR>120dB, Noise<1.6UV.

  • What You Get: DS1 USB DAC Headphone Amp x1, Type-C to Type-C cable x1, USB-A to USB-C Converter x1, user manual x1, our worry-free 24-month warranty, and friendly customer service. NOTE: The new version of the DS1 headphone amp optimized the volume control which is independently controlled from the audio source device.
DS1


Specifications

Specifications Details
Model DS1
Output Power 120mW(SE); 220mW(BAL)
Terminating Impedance 16-300Ω
Input Mode USB Type C
Output Mode 3.5MM + 4.4MM Headphone
Frequency Range 20Hz-20kHz (±0.5dB)
THD 0.0006%(32Ω SE); 0.001%(32Ω BAL)
SNR ≥120 dB
Sampling Rate 32bit/768kHz
DSD DSD64/128/256/512
DAC Chipset ES9038Q2M
Material Tin Alloy
Device Weight 38g


What‘s in the box?

Item Quantity
Fosi Audio DS1 x 1
Type-C to Type-C cable x 1
USB-A to USB-C Converter x 1
User Manual x 1

FAQs

Please read our FAQs page to find out more.

How to: Choose the right banana plug?
  • Closed Screw Type. All Fosi amplifiers use standard-sized speaker terminals (4mm pins).
  • Easy to wire up and solidly connect to amplifier and passive speaker.
  • If they do not fit, use a little force to tighten the plugs.
  • Fosi Audio Banana Plugs (Copper, Silver/Gold Plated): http://bit.ly/40Djq0U, https://bit.ly/3MkPL8t
  • Please watch tutorial videos: https://youtu.be/6pYhoqDlvNw / https://youtu.be/RGvBgGAwS9k
How to Diagnose Power Supply Failure?
  • The following situations may cause this issue
  • Case 1: The LED on the power supply does not light up; Case 2: Amp/Preamp does not turn on; Case 3: When plugged into the Amp, both light on the amp & power supply start blinking; Case 4: Amp/Preamp make noise; Case 5: Sound shuts off by itself
  • Possible solution
  • Check if the power supply is illuminated when plugged into AC by itself.

    Plug power supply into a different socket.

    Test the adapter with a meter.

    Try a different power supply (within a range of DC input).

    Test the included power supply on other electrical equipment.

    Please watch the tutorial video by clicking on the link provided. https://youtu.be/yCjygS03zTE
What are the differences in power outputs using the 32V and 48V power supplies?
  • Using a more powerful power supply can help prevent distortion.
  • Enables amplifier to drive larger, more powerful, or higher-impedance speakers.
What is a GaN?
  • The GaN supply has a power output of 240W.
  • Offers overload and over-temperature protection.
  • The 48V 5A GaN power supply is also available on Amazon.

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